The unit was officially constituted in San Antonio, TX on 28 August 1948, as Company "C" of 20th Infantry Battalion. Since that time San Antonio area Marines have served variously as the 7th Rifle Company, 14th Infantry Battalion.
The 4th Reconnaissance Battalion designated on 1 July 1962.
The Planning for the seizure of Eniwetok began when the fighting was still taking place on Kwajalein. The D-Day for Eniwetok was scheduled for 17 February 1944. Eniwetok is made up of forty islets or more and was given the operation codename, DOWNSIDE. The preliminary pre-D-Day amphibious reconnaissance was performed by both Captain Edward Katzenbach's designated 4th Marine Division's Company D (Scout), 4th Tank Battalion, and Captain James Jones's Amphibious Reconnaissance Company of the V Amphibious Corps.
The landing plan encompassed four phases, on D-Day, three islets in the north of the atoll were to be seized. Two were to be used for artillery bases, Aistu and Rujioru—codenamed CAMELIA and CANNA. Bogen Island, or ZINNIA, lies north of the islet of Engebi (FRAGILE). ZINNIA was tasked to be seized by Katzenbach's 4th Division Scouts while Jones's company was ordered to recon and seize CAMELIA and CANNA. Katzenbach and his scouts fought the heavy surf and fierce 25-knot winds, which instead forced them to land on an island next to ZINNIA. By 0327 on D+1, the scout Marines crossed over to Bogen and declared it secured.
General Thomas E. Watson, assistant division commander of 4th Marine Division, ordered both the amphib recon and scout companies to continue reconnoitering, seizing and clearing other islands in the atoll, moving south toward the islet of Japtan, or LADYSLIPPER. While VAC Amphib Recon Company were operating on Parry island, or LILAC, in the eastern-side, Katzenbach's Scouts were clearing the islands and coral outcroppings on the western-side of DOWNSIDE. Once Katzenbach reached the larger islet of Rigii (POSY), 20 miles west of LILAC, and were engaged by hostile fire from the Japanese defenders; the scouts killed nine Japanese before declaring POSY secured.
After the seizure of both Aitsu and Rujioru, artillery emplaced on the two islands and were used in fire support for the occupation landing forces on Engebi, or FRAGILE. General Watson attached the 2nd Separate Tank Company from 22nd Marines and Captains Jones's and Katzenbach's recon and scout companies to the Army106th Infantry Regiment (less 2nd Battalion) and designated the reinforced unit as 3rd Battalion, 106th Infantry (3/106) as reserve.
At 0908, the Marines hit the beach for the main assault of 1st and 2nd Battalions of 22nd Marine Regiment. Third Battalion were called in early to follow in trace. At 1230, both the VAC Amphib Recon Company and 4th Division Scout Company were ordered to augmented the 22nd Marines. Jones's company reported to 1st Battalion and Katzenbach's company reported to 2nd Battalion, both landing at 1320. On 23 February 1944, the Eniwetok Atoll was declared secured, closing Operation DOWNSIDE.
Before the operations of Iwo Jima, two officers and twenty enlisted scout-recon Marines from the scout and sniper platoons of 4th and 5th Marine Division and three amphib recon Marines from Company B of VAC Amphib Recon Battalion, FMFPAC were detached to composite together a "provisional amphibious reconnaissance group" made up of recon Marines and four Underwater Demolition Teams (#12, #13, #14 and #15). The reason was to expedite the passage and briefing of raw beach and enemy information to their own respective parent operations (S-3) and intelligence (S-2) staffs. Embarking on USSBlessman(DE-69) the augmented recon and UDT team, along with the four UDTs embarked on high-speed transport shipsUSSBull(DE-693), USSBates(DE-68), and USSBarr(DE-576), and headed to Iwo Jima, arriving just off the eastern beaches of Iwo Jima on the morning of 17 February 1945, two days prior to D-Day (D-2).[1]
Naval gunfire support commenced from battleships USSIdaho(BB-42), USSNevada(BB-36) and USSTennessee(BB-43) and by 1025, Admiral William Blandy ordered the fire-support battleships to retire and clear the approach lanes for the UDT and recon Marines. The UDT and Marines were tasked with taking photographs of the beaches and enemy defenses, if possible. At 1100, the four APDs slowed and dropped the Higgins boats, launching their rubber boats. While they made their preliminary landing toward shore, they immediately encountered enemy fire. Evading fire, they made their way to the beachhead, every one of the twelve landing personnel carriers were either hit or sinking. After completing their photo reconnaissance, they made their way on the remaining landing craft still floatable and returned to the APDs.
February 1991—March 1991, the Marines of 4th Reconnaissance Battalion volunteered for extended active duty in support of three counter-narcotic operations under the control of Joint Task Force Six headquarters in El Paso, TX.
Operation Iraqi Freedom
Marines from 4th Reconnaissance Battalion have served multiple combat tours in support of Operation Iraqi Freedom supporting active-duty Force Reconnaissance units and Division-level reconnaissance units. In 2003 Delta Company, attached to 1st Recon Battalion, was one of the first Marine Units in many parts of Iraq. The Battalion acted as the Spear head for the 1st Marine Division spawning the book and HBO Show "Generation Kill". Charlie Company augmented 2nd Force Reconnaissance Company, II Marine Expeditionary Force in support of Task Force Tarawa. Charlie Company lead reconnaissance efforts through the initial invasion of Iraq, during the Battle of An Nasiriyah, the Jessica Lynch rescue, and initial movements to secure Baghdad and Al-Kut. In 2004, Bravo Company, attached to 2nd Reconnaissance Battalion, participated in the Second Battle of Fallujah. In 2005 Headquarters and Service Company augmented 3d Battalion, 25th Marines in Al Anbar. In 2006 and 2007, 4th Reconnaissance Battalion headquarters and platoons operated as an independent command in support of Regimental Combat Team 7 in Iraq's Al Anbar Province. Detachment 4th Force Reconnaissance Company 4th Marine Division
1 2 Bruce F. Meyers, Swift, Silent, and Deadly: Marine Amphibious Reconnaissance in the Pacific, 1942–1945, (Annapolis, MD: Naval Institute Press, 2004).
The Battle of Iwo Jima was a major battle in which the United States Marine Corps (USMC) and United States Navy (USN) landed on and eventually captured the island of Iwo Jima from the Imperial Japanese Army (IJA) during World War II. The American invasion, designated Operation Detachment, had the purpose of capturing the island with its two airfields: South Field and Central Field.
The Underwater Demolition Team (UDT), or frogmen, were amphibious units created by the United States Navy during World War II with specialized missions. They were predecessors of the navy's current SEAL teams.
Force Reconnaissance (FORECON) are United States Marine Corps deep reconnaissance companies that supply military intelligence to the command element of the Marine Air-Ground Task Force (MAGTF). Force Reconnaissance companies unlike USMC division reconnaissance report to the Marine expeditionary force (MEF) and provide direct action and deep reconnaissance during large-scale operations.
The 5th Marine Division was a United States Marine Corps ground combat division which was activated on 11 November 1943 at Camp Pendleton, California during World War II. The 5th Division saw its first combat action during the Battle of Iwo Jima in 1945 where it sustained the highest number of casualties of the three Marine divisions of the V Amphibious Corps. The 5th Division was to be part of the planned invasion of the Japan homeland before Japan surrendered. Assault troops of the 5th Division were included in the Presidential Unit Citation awarded to the V Amphibious Corps for extraordinary heroism on Iwo Jima from 19 to 28 February 1945. The 5th Division was deactivated on 5 February 1946.
The United States Marine Corps Reconnaissance Battalions are the special operations assets of Marine Air-Ground Task Force that provide division-level ground and amphibious reconnaissance to the Ground Combat Element within the United States Marine Corps. Division reconnaissance teams are employed to observe and report on enemy activity and other information of military significance in close operations. The Military Occupational Specialty code for Reconnaissance Marine is 0321.
The 25th Marine Regiment is one of two infantry regiments in the 4th Marine Division of the United States Marine Corps. From its headquarters in Fort Devens, Massachusetts, the regiment commands fifteen training centers in nine states throughout the Northeast. These units consist of approximately 3,500 reserve and active duty Marines and are located from Maine to Delaware, West Virginia and as far west as Ohio. The 25th Marines is primarily a cold weather regiment and frequently trains in northern Norway.
The 3rd Reconnaissance Battalion conducts amphibious and ground reconnaissance in support of the 3rd Marine Division and Marine Forces Pacific (MarForPac), operating in the commander's areas of influence. The battalion is based out of Camp Schwab, a satellite base of Marine Corps Base Camp Smedley D. Butler. It is geographically located on the Okinawa Prefecture in Japan.
1st Reconnaissance Battalion is a reconnaissance battalion in the United States Marine Corps. It is a stand-alone battalion with no parent regiment. Instead, it falls directly under the command of the 1st Marine Division. 1st Recon Bn is located at Marine Corps Base Camp Pendleton in San Diego, California.
The 2nd Reconnaissance Battalion is a reconnaissance battalion in the United States Marine Corps. Located at Marine Corps Base Camp Lejeune, North Carolina, the battalion falls under the command of the 2nd Marine Division and the II Marine Expeditionary Force.
The 28th Marine Regiment is an infantry regiment of the United States Marine Corps. The regiment, which is part of the 5th Marine Division, fought in the Battle of Iwo Jima during World War II. Six Marines of the 2nd Battalion, 28th Marines were featured in the historical photo by Joe Rosenthal of the U.S. flag raising on top of Mount Suribachi.
The 3rd Tank Battalion was an armor battalion of the United States Marine Corps. It was formed during World War II and played a part in several Pacific island battles, most notably Iwo Jima, where its flame tanks played a key role in securing the island. After the war, the battalion was based at Camp Pendleton but remained inactive until the outbreak of the Korean War, eventually moving to Okinawa. Along with the 1st Tank Battalion, 3rd Tanks was involved in major combat operations in South Vietnam from 1965 to 1969. Afterwards it concentrated on desert warfare and fought in the first Gulf War in 1991. It was deactivated for the last time in 1992.
The United States Marine Corps's Amphibious Reconnaissance Battalion, formerly Company, was a Marine Corps special operations forces of United States Marine and Hospital corpsman that performed clandestine operation preliminary pre–D-Day amphibious reconnaissance of planned beachheads and their littoral area within uncharted enemy territory for the joint-Navy/Marine force commanders of the Pacific Fleet during World War II. Often accompanied by Navy Underwater Demolition Teams and the early division recon companies, these amphibious recon platoons performed more reconnaissance missions than any other single recon unit during the Pacific campaigns.
The reconnaissance mission within the United States Marine Corps is divided into two distinct but complementary aspects; Marine Division Recon and Force Reconnaissance.
The United States Marine Corps Scout and Sniper companies and the Scouts (Tank) companies of the tank battalions were the first among the division's reconnaissance assets. They existed around the same exact moment when 1st and 2nd Marine Division were created. In 1941, each regiment had a scout and sniper platoon. They were assigned to the regimental Headquarters and Service Company. These companies were used in variety of tasks and, on occasion in severe combat, were used as "spare" rifle companies. When 6th Marine Division deactivated after the end of World War II, its recon assets also deactivated. Only the current Marine Division Recon Battalions that exist today hold history reference to the Scout and Sniper Companies.
1st Force Reconnaissance Company conducted deep reconnaissance and direct action raids in support of I Marine Expeditionary Force requirements across the range of military operations to include crisis response, expeditionary operations and major combat operations. 1st Force Recon Company was deactivated on 26 October 2006 and the majority of the personnel were used to establish the 1st Marine Special Operations Battalion.
The Second Force Reconnaissance Company was the deep reconnaissance/direct action that was assigned to the Fleet Marine Force, Atlantic and its subordinate elements of the Marine Air-Ground Task Force.
The Scout and Sniper Company of 6th Marine Division was the division reconnaissance asset for the regimental commanders. It was created by former Marine Raider Major Anthony "Cold Steel" Walker to form a scout company from Company H from out of one of the regiments of 6th Marine Division. The Scout Company deactivated, along with 6th Marine Division, after the end of World War II.
3rd Force Reconnaissance Company is a force reconnaissance unit of the United States Marine Corps Reserve. The company is located in Mobile, Alabama.
Naval Mobile Construction Battalion 133 is a United States Navy Construction Battalion, otherwise known as a Seabee battalion, homeported at the Naval Construction Battalion Center. The unit was formed during WWII as the 133rd Naval Construction Battalion. It saw action and was decommissioned shortly after the war ended. The unit was reactivated as Mobile Construction Battalion 133 for the Vietnam War and remains an active unit today.
Operation Deckhouse IV was an operation conducted by the Special Landing Force (SLF) Battalion Landing Team (BLT) of 1st Battalion, 26th Marines in the eastern Demilitarized Zone (DMZ), lasting from 15 to 18 September 1966.
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United States of America 
United States Marine Corps 
Marine Division Recon 
Marine Forces Reserve 
4th Marine Division 
Major Anthony "Cold Steel" Walker
LtCol Bryan Patterson
